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DOA estimation using vector sensor arrays

by: Hung Lai, K. Bell, H. Cox
In Signals, Systems and Computers, 2008 42nd Asilomar Conference on (October 2008), pp. 293-297, doi:10.1109/acssc.2008.5074411  Key: citeulike:11967597

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Abstract

We consider the problem of estimating the azimuth and elevation angle of sources using a vertical line array of vector sensors. Three alternative direction-of-arrival (DOA) estimators are considered. The first approach uses beam cross-correlation. The other two approaches are element-space and beamspace versions of an eigenvector-normalization scheme in which the eigenvector is normalized by its omni-directional component. The performance of these DOA estimators is evaluated for a vertical line array of 2D vector sensors (DIFARs) using simulation scenarios that involve mostly 3D isotropic noise and either no interferer or one loud interferer at various separation distances from a weak target.


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